Draft rigging



Juhe 25, 1935. D. s. BARROWS 2,006,290

DRAFT RIGGING Filed Oct. 2, 1929 1 2 fi/gafi if iii- 10 M 2 1519 7" 4 4/27 2 Patented June 25 1935 iooazco -f DRAFT madma- Donald S. Barrows, RochesterpN Y assignorflto 1 v I The Syinington Gompany, New York, N. 'Y., a 1" J This invention relatesto draft rigging; for railway rolling stock and, more-particularly, to mech: anism for operatively' connecting the coupler and yoke while allowing the desiredamountiof. angling s therebetween in alldirections. i g The principal object of my invention generally considered; is; to provide a universal connection between the coupler and yoke members i railway draft rigging.

Another object of my invention is to provide a connection between thecoupler andyokeof; railway draft rigging; with the allowance ofsubstantially universal motion therebetween by forming interengaging substantially spherical surfaces on theassociated members.

A further object of myinvention is toprovide a key connected coupler and yoke with a block.

mounted on the key and provided with substantiallyspherical portions which fit. into serve as a bearing for the butt of the coupler stem which: surrounds and engages theblock, an auxiliary member beingprovided embracing the. coupler stemand presenting a substantially spherical pocket which serves as a bearing; for a similarly shaped.- butt. portion on; the coupler,: the

key serving to connect the coupler, through-zthe block therein, to the auxiliary member and the associated yoke, whereby draft forcesz'theres.

between are transmitted by the key, and buffingforces by the auxiliary member, ,to an associated front follower and/or cushioning mechanism.

Other objects and advantages of the invention relating to the, particular arrangement and construction' of the various parts willbecome. apparent, as. the description proceeds. I

Referring to the' drawing illustrating my invention, the scope whereof is definedbythe appended claims. e

Figure 1 is. atopplan; partially in horizontal section illustrating a coupler and yoke connec-. tion embodying my'invention. v e

- Figure 2 is aside elevation partly: in vertical longitudinal section of the; construction shown in Figure l. I I Referring to the drawing in .detaihtlikepart's being: designated by like reference characters there is shown a coupler the sir-m1 of which. is connected to a yoke 2 by meansofa transversely extending: key 3. Thecoupler stem is formed with a butt portion the outer surface of the rear wall: 5 thereof beingformed substantially spherical and. adapted tohear I against a transverse-portion 6 0i an auxiliary member 1 having forwardly extending WQHSPQI?" arms eembracing 66" the stem l of thecoupler and correspondingly coupler stem l to the auxiliary member slotted for receiving the key 3. The transverseportion 6' ofthe auxiliary member or swivel block: I is shown as integral with-the forwardly-else. tending arms: aand. theyfrontfcace ,9 thereof is concave, substantially spherical and preferably accurately fitsthe rear surface 4 ofthe coupler butt-so'that angling or-substantially universal movement between said coupler and; auxiliary? member, as. well as the associated yoke, is. permit:ted.- The rear portion of the. yoke 11inch shown) maybe of usual construction'. I 1 The butt portionofthe coupleriwstem; is formed with a1 pocket I50 intowhich'isfittcda;

block 1-1.. The pocket; musrcrmee betweentupi.

her and lower walls 12 and I3 respectivelyioft-thd coupler, which Walls are normally horizontal; and the rearward and forward: 5fandal'll; respectively, of.- said coupler-1 butt;.=.said:.latt.er walls "preferably havingrconcaye'i substantially spherical inner surfacesnli and Hi; respectlvelyc. Theseeinner. surfaces are: preferably substantially: concentric with. the spherical surfaces earmark; I on the coupler butt'land auxiliary member. 17; respectively. The block Hafittinginrthexcoupleln pocket I0 is preferably formed with upper and lowenflatisurfaces. I 1" and .18., respectivelw-and rearward .and forward convex-.substantiallyspheric'al? surfaces I39 and m respectivelyi The flat surfacesll and: i8. on the-block H r are preferab y spaced from the cooperating upper. and walls of the coupler pocket. to. permit. the. desired amount of play or motion 5 therebetween, whereas, the spherical surfaces, l9,- and; 250i on-theflbloiolc are embraced between the complementary sphere ical surfaces: t5 and 1:6 of'the pocketwith -prefe erably only-a slight amount of play therebetween' As'the spherical surfacesnn the block; are sub; stantially concentric with thecomplement'ary surfaces" on the pocket, a desired amount oft-jan gling or pivotal motion; between the coupler-and block is; permitted in all directions; .v The block l l isprovided with a. slot-p21 through; which normally extends; the-key 3v forconnecting the coupler, block-, auxil member, and yoke. The arnisof the;yoke; correspondingly slotted, indicatedat 22. It w ll: e. see io of i e lat forces are transmitted; from the; coupler .to the yoke through the block ;I l andkey 3, the c,oupler being: allowed to angle or swivel about the block I. I. Buifi l fo ces hawe 'v a lw e e: mitted'. directly from the rear surface- 4, of from: there-to associated. follower or usb c stms an m 4 0 Sha n 1H "I iii? are

41f lower 23 is employedbetween the. arms of a horizontal yoke 2, said follower is desirably held in place by means of a second key 24 passing through a slot 25 in the follower and slots 26 in the arms of the yoke.

In order to assemble the block I l in the pocket Ill of the coupler stem, it is necessary to turn the same from the position shownin Figure 1 throughsubstantially 90 in' a horizontal plane. It will then be possible, because of the relative width and length of the block, to move it transversely into position between the front and walls defining the pocket Ill, whereupon the block is then turned back through approximately 90 sothat the convex spherical surfaces thereon I will engage with the complementary surfaces on.

the interior of the pocket. When the parts are assembled, the clearances' are preferably such 1 that engagement is effected between theconvex butt of the coupler ancl'the'corresponding" surfaces on the auxiliary member, 1 before the conca'vesurface I6 on the couplerstem engages the connection between a coupler and yoke for railway draft rigging which allows for universal anglingtherebetween to a desired extent. Although a1 preferred embodiment of my invention has been illustrated, it will be understood that I do not'wish to be limited to the details as modificationsamay be made within the scope of .my in vention'as'deflned'by the appended claims. It will'be. seen that on account of employing an auxiliarymember. between the butt-of the coupler: and the front follower, universal angling is provided for on buff, while at the same time it is possible to use an ordinary or substantially standard front follower supported by a second key."- zHavingnow describedmy invention, I claim:

*1. In railway draft rigging, in combination witha coupler, a main. yoke, a keyl connecting said coupler and. yoke, said coupler and key having an element therebetween to provide a universal. joint, and an auxiliary member with arms at the sides operatively embracing the stem-of saidtcoupler and said element and each arm intersected by saidkey, to hold the parts assembled to receive buffing forces from the coupler.

In-railway draft rigging, in combination 'with a coupler, a main horizontal yoke, a key adapted to transmit draft forces between said coupler-and yoke,an auxiliary member mounted on-said-key and fitting in a-pocket in the stem of said coupler to provide for universal movement'between said coupler, and yoke, and a supplemental member with forwardly extending arms-embracing the stem of said coupler and connected thereto by said key for the transmission of bufling'forces. a

-3. In railway draft rigging-in combination with 'a coupler stem having *asubs'tantially' spherical butt portion, a yoke, a' follower dis posed between the forwardly extending arms of saidyoke, and an auxiliary member disposed between the-butt of said coupler stem andsaid followerphaving a front face of substantially" spherical conformation and concentric with the butt portion of the couplrforfuniversal move-f embracing ment therebetween, and forwardly extending arms disposed at the sides of, and in embracing relationship with, the coupler stem, and means extending between said. coupler and yoke for transmitting draft forces and individually con- Inecting each of said arms to said coupler.

4. In railway draft rigging, in combination with a. coupler. stem having. a substantially spherical butt portion, a} 'oke', havirig cushioning mechanism pocket, a mint follower closing the. front end of said pocket, and an auxiliary member between said follower and the butt of said coupler stem, with arms embracing said stem, and formed with a substantially spherical pocket fitting. the coupler 'butt for receiving bufiing forcestherefrom and for universal movement with respect thereto, and means intersecting said coupler, yoke and each of the arms of said auxiliary member for holding the parts assembled. Y

5. In railway draft rigging, in combination, a coupler-having a stem with' a cavity therein, walls of which are substantially, spherical} a block mounted in said cavitysand havirig sixhfaces approximately concentric'with thecurved surfaces of said cavity, a yoke, an auxiliary member with forwardly extending arms lying on either side-of and embracing the-s'tem of said coupler and said block for...:transrnitting buffing forces from said coupl'enand means" exall? tending through said blockand the 'arms-of said auxiliary member forcon'necting the coupler and yoke. I I i a oppositewal ls of said pocket being substantial-- ly spherical, means mounted in said pocket and having substantially spherical surfacesfitting the-sphericalwalls of the pocket in the coupler, ayoke, means'With side 'arms' embracing the stem of said coupler and-embraced by thej'arms of said yoke for transmitting buffing forces from said coupler, and means extending through said means in said pocket and the side arms of said -means for connecting the assembled '7. In railway draft rigging, in conibina'tion, a coupler stem having a rear transverse wall and a. forwardly spaced transverse wall, the' inner' faces of said walls being substantially spher ical, a slotted block mountedbetween'said walls and having bearingsurfacestofit-between the spherical portions of: said walls, an auxiliary member with side arms-embracingthe'stem of said couplerandsaidblock for transmitting bufilng forces from said'coupler, a yoke embracing said auxiliary member, and a key extending through the slot in the block and saidyoke and the arms of said auxiliarymember for the transmission of-"draft forces between said coupler and yoke and holding theq'parts assembled.

8.- In railway draft riggingy in combination, a couplerstem having a rear integral transverse wall and an integral transverse wall forwardly spaced-withrespect thereto, the inner faces-of said walls being substantially I concentric and spherical, the-outer face of *the rear wall being curved substantially concentric with theinner face thereof} a slotted block mounted between said walls and having bearing surfacesshaped to fitbetween ,thespherical portions -thereof, an auxiliary member engaging said coupler stem and formed with forwardly extending arms embracing-said block, ahorizontal yoke with forwardly extending arms embracing said auxiliary memher on either side of the arms thereof, a key extending through slots in the block, and in the arms of said auxiliary member and yoke for connecting the parts, that portion of the auxiliary member adjacent thecurved outer face of the rear wall of the coupler stem being correspondingly curved to fit said face and adapted to bear thereon for the transmission of buffing forces.

9. In railway draft rigging, in combination, a coupler provided with a butt substantially spherical on its rear surface, an auxiliary member embracing the butt of said coupler and provided with a portion adjacent the spherical portion thereof fitting said spherical portion, and a key passing through registering slots in'said auxiliary member and coupler for connecting said parts, sufficient clearance for the key being provided to permit universal angling of the coupler with respect to said member.

10. In railway draft rigging, in combination, a coupler stem with a butt substantially spherical on its rear surface and having a pocket formed between a rear wall thereof and a forwardly spaced wall, the inner-surfaces of said walls being substantially spherical and concentric withthe I rear surface of the butt, a block mounted in said pocket, a yoke associated with said coupler stem, an auxiliary member disposed between the arms of said yoke and having side arms embracing the butt of said coupler, said auxiliary member having a forward face substantially spherical and fitting the rear surface of the coupler butt, and means connecting'said block, each arm of said auxiliary member and said yoke.

11. In railway draft rigging, in combination, a coupler stem with a butt substantially spherical on its rear surface and having a pocket therein.

betweenrear and forwardly spaced walls, the

inner surfaces of said walls forming a portion of an approximate sphere substantially concentric with the rear surface of the butt portion, a block mounted in said pocket and fitting between said walls, an auxiliary member with arms embracing the butt of said coupler at the sides thereof and presenting a portion contacting and fitting the spherical butt of the coupler, yokeacting means with the forward portions lying on opposite sides of said auxiliary member arms and the stem of the coupler, and means extending through said yoke-acting means, each arm of said auxiliary member and said block, for connecting said members. I

12. A coupler provided with a stem having a substantially spherical butt portion and formed with a pocket therein between a rear wall and a wall forwardly spaced therefrom, the inner surfaces of said walls being substantially spherical and concentric with the butt portion, a block mounted in said pocket and formed with curved tending slot in advance thereof, said rear wall having curved rear and forward surfaces, a bearing block having a curved forward face cooperating with said curved rear surface, and a key seat member positioned in said slot and having a curved rear face cooperating with said curved forward surface of said rear wall, the bearing block being provided with forwardly extending arms embracing said shank member and key seat member and serving to connect said block to said key seat member. s

14. A car coupler adapted for attachment to a draft yoke or the like, said coupler involving a shank member provided at its rear end with a horizontally and vertically curved exterior surface and having in advance of said surface a vertically and horizontally curved, interior face and having a transversely extending slot in advance of said surface, a key seat member having a curved rear face corresponding to and engaging said in-' terior face of the shank member, a bearing block having a flat rear face adapted to engage the follower of adraft gear and having a vertically and horizontally curved forward surface for cooperating with said exterior surface of the shank member, and means attaching said bearing block to the shank member, said means including said key seat member. v

15. A car coupler adapted for-attachment to a draft yoke or the like, said coupler involvinga.

shank having a rear end wall and a transversely extending slot in advance thereof, said rearwall having a curved rear surface and a curved.for-,

ward surface, a key seat member having a curved rear face corresponding to and engaging said forward surface of said rear wall, a bearing block member adapted to engage the follower of a draft gear and having a curved forward face forcooperating with said curved rear surface of said rear wall of the shank member, said curved surfaces of. the rear wall of the coupler shank being adapted to permit one of said members to angle horizontally with respectto said shank and j the other of said members to angle vertically with respect to said shank, and means engaging the key seat member for attaching the bearing block member to said key seat member.

DONALD S. BARROWS.v Y 

